Improvement in casting balls for rifles



PATENTED DEC. 24, 1861.

P. NAYLOR. MEANS FOR CASTING BALLS.

ANN

17w: nEr-r UNITED. STATES P TENT OFFICE.

PETER NAYLOR, or New YORK, n. Y.

lMPRO VEMENT m GASTiNG s ums FOR amiss.

Specification forming part of Letters Pat-cut No. 34,006, dated December 24,1861.

,To Boil whom it may concern:

Be it-known that 1, PETER NAYLOR, of the city and State of New York, have invented, made, and applied "to use/a certain new and useful Means for Casting Balls for Rifles, 8m; and I do hereby declare that the following is a full, clear, and exact description of my said invention, reference being had to the annexed new balls, usually known as the fMini zealh? f In thse cases the molds have either heft the tan in a rough state, to be afterward finished by'compression, or 'else the surplus metal has beeneut ofi while in the molds/ and the compressing and solidifying of the balls has been accomplished by separate and "distinctopcration, either while in then'uolds or after being removed therefrom. I

lhe nature of my said invention consistsin the employment of apnnch held above or sufficiently distant frerh'the mold to" allow the nieltedinetal to ihe poured, and which punch, on being forced toward the mold, si-

innltaneousiy eifects the three operations of,

first, consolidating the metal and thoroughi y filling tlie mold by pressure on the semiiiuid mass; second, of impressing its own form in ,the molten metal, and thus com- 'pletely finishing the metal at the pouringpoint; and, third, oi filling or nearly filling the opening to the mold through which the metal was poured, so as to separate the ball 1nd the surplus metal, so that said-surplus natal does not require to he cut off by a separate operation, as heretofore. By this means my balls are not only more perfect in. every respect than those heretofore cast, but considerable expense is saved in the casting, and ess time is occupied than heretofore.

In the drawings, a a are the halves of the mold-kept together by a suitable pressure when'the balls are being cast and finished, or

opened for their deli.very. I have shown the screwsb b for this purpose.

The size and shape of each cavity 2 2 is to be that of the ball to be cast. I 'haveshown these cavities shaped according to the ordinary elongated or Mini ball.

c is a die-bar carrying the 'dies 3 3, one of said dies being over each of the cavities 2,-

- and keptby the bar a sui'iiciently above the said cavities 2'to allow the melted metal to run into these cavities, and the end of each of these dies is to be shaped as'required for finishing the ball. asshaped for forming a' hollow or Mini ball, and when said die is forced down upon the metal while'in a semi-fluid state the ball is consolidated, finishe'd and the surplus metal separated from the ball. The upperportion of these dies should be tapering, so as freely to come-out of the nias'sof surplus metai around the1n,as seen in Fig. 1 by red' lines. Each of these dies'3 might be driven down by a blow from a hammer acting separately on each, if the stemof said die extended up through thebar e and projected above. I have, however, shown all these diesset in said bar 0, and I'act on all at once bya heavy hammer or a dropwveighdin order to efifect the aforesaid three objects by forcing the dies" down upon the semi-fluid metal: ,This diebar 0 is, for convenience, hinged by the pin 4, 'a'ndcan be turned back out of the way while the surplus metal isbeing lifted from the pouring-trough formed on the top of the molds a a. g

'd d are guidc-barscausing the molds a a to open and close parallel and correctly, and also serving to-bring the bar 0 parallel with the molds and correctly over the cavities2 2, said bar o setting in anotch betweenthe lugs 5 5 on each upper guide-bar d d.

6 6 are lugs projecting from the under sides of the upper-bars, cl d, that take re-i cesses in the faces of the'molds an, and when said molds are shut bring .the bars d d and bar 0 into position transverselyof the molds.

In order hold the barc and (lies 3 3 sufliciently above the cavities "'2-2 to allow for pouring-the metal, I employ the Wedges? 7,.

I have shown each'die 3 (see Fig, 3,) and when these are drawn back In witness whereof I have hereuntoset m? the bar a and dies 3 3 (22in be forced down as a' signature this 23d day of N0vember,-1861.

- whole, for the purposes aforesaid.

Wh atl claim. and desire to secure by Letters PETER NAYLOR. Patent, is-- e The employment of adie,- 8', at the opening \Vitnesses: through which the metal is poured, in the LEMUEL W.-. SERRELL,

manner and fer the purposes specified THOS. GEO. HAROLD. 

